Trestle leg and hinge bracket



March 20, 1951 DALTON 2,545,767

TRESTLE LEG AND HINGE BRACKET Filed Nov. 19, 1947 I N VEN TOR.

' /arez 06 16154 [Z077 8' aka Java/r64 ATTU R N EYS Patented Mar. 20, 1951 UNITED STATES PATENT OFFICE TRES TLE L EG AND HINGE BRACKET ClarenceE. Dalton, Clayton, Mo., assignor ,to Dalton Manufacturing Company,Clayton, Mo., a corporation of Missouri Application November 19, 1947,Serial No. 786,965

3 Claims.

This invention relates to a toggle hinge bracket.

It is an object of the present invention to provide a toggle hingebracket having part-s adapted to be spread apart to receive the legsadapted when secured to the hinge to form the legs of a saw horsewherein there is a simple adjustable means associated with the parts forretaining the same in their spread positions.

Other objects of the present invention are to provide a hinge bracket.for'use in forming saw horse types of structures including devices forholding the parts separated, which is of simple construction,inexpensive to manufacture, easy to adjust and efficient in operation.

For other objects and for a better understanding of the invention,reference may be had to the following detailed description taken inconnection with the accompanying drawing, in which Fig. 1 is a sideelevational view of the toggle hinge adapted for use with a saw horsetype of bracket with the hinge parts extended to retain the bracketparts in their open positions.

Fig. 2 is a plan view of the assembled toggle hinge parts removed fromthe bracket.

Figs. 3 and 4 are respectively sectional views taken on lines 3-3 and 44of Fig. 2.

Figs. 5 and 6 are respectively perspective views of the toggle hingeparts.

Referring now to the figures, Ill represents a bracket of the saw horsetype adapted to receive leg and top parts so that when the bracket partsare extended a saw horse type of structure will be provided. The legsare indicated at H and I2 and the piece connected with the top of thebrackets is indicated at l3. The bracket parts are hinged together asindicated at It and may be provided with lugs l5 having openings thereinas indicated at [6 for receiving projections I! of toggle hinge parts1-8 and I9. Plvoted at It is a bolt 2| having a wing nut 22 adjustablethereon and a guide plate 23. The toggle hinge parts It and is arefitted together to be pivoted relative to one another. Each part has arecess indicated at 24 through which the bolt 2! extends. Each part hasan external or outer portion 25 which is rounded and curved to receive asmall internal or inner portion 26 of the other part. These arcuateportions 25 and 2-6 of the hinge plates l8 and I9 are semi-cylindricaland formed on a common axis, and therefore interlock wherein one sectionis held by the other, forming a hinge without a pin. The parts areassembled by sliding one section endwise into the other to form thehinge as illustrated in Figure 2.

The outer edges of the hinge plates are pro- 2 videdwith extrusions 2!and 2 8 that bite into the wood as the plates forming the toggle armsare forced. outward, thereby making it possible to use warped 2 x 4s orthe like for the legs of the saw horse, and at the same time provide arigid grip.

It will be noted that one hinge plate is a duplicase of the other sothat only one stamping is required to form the hinge. With the twoplates assembled the projections I! are inserted in the openings l6 ofthe usual toggle spreader and with the bolt 2| passing through therecesses 24 the wing nut is screwed upwardly to force the armsoutwardly. Upon lowering the wing nut 22 after use, the toggle arms orplates l8 and I9 can be lowered and the bracket parts collapsed orbrought together.

Accordingly there has been provided a hinge which does not require ahinge pin for pivotally connecting the parts together.

It will be understood that modifications may be made in the design andarrangement of the parts without departing from the spirit Of theinvention.

I claim:

1. In a saw horse bracket hinge, the combination which comprises a pairof leg receiving brackets U-shaped in cross section and having pairs ofextended lugs on the inner edges, a pin pivotally connecting the lugs ofone of said pairs whereby the brackets grip a top member of the horsewith the legs extended from the brackets, additional pairs of lugs withopenings therethrough positioned on the lower ends of the bracketsextended inwardly from the inner edges of sides thereof, hinge plateshaving overlapping substantially semi-circular flanges on the meetingedges thereof and having projections on the ends extended into theopenings in the pairs of lugs positioned on the lower ends of thebrackets, a bolt mounted on the said pin which connects the pairs oflugs of the brackets and having a threaded lower end extended throughthe said semi-circular flanges of the hinge plates, and a thumb nutthreaded on the lower end of the bolt for urging the hinge platesoutwardly.

2. In a saw horse bracket hinge, the combination which comprises a pairof leg receiving brackets U-shaped in'cross section and having pairs ofextended lugs on the inner edges, a pin pivotally connecting the lugs ofone of said pairs whereby the brackets grip a top member of the horsewith the legs extended from the brackets, additional pairs of lugs withopenings therethrough positioned on the lower ends of the adapted forpivotal movement with the pin and,

having a threaded lower end extended through the said semi-circularflanges, and a thumb nut threaded on the lower end of the bolt forurging the hinge plates outwardly, the said semi-circular flanges of thehinge plates bein alternately positioned with each plate having a largeflange on one end and a small flange on. the, other and;

with the plates assembled whereby the small flanges nest in the largeflanges of complementary plates.

3. In. a saw horse bracket support, the combination which: comprises: apair of leg receiving brackets having open sockets: extended inwardlyfrom the lower ends, a pin pivotally connecting the brackets, hingeplates having overlapping substantially semi-cylindrical sections onthe, meeting edges thereof, each of said hinge plates having,projections on.- the ends and, said plates;

positioned whereby the said projections extend into the open sockets inthe lower ends of the brackets, a bolt mounted on the said pin thatconnects the leg receiving brackets and having a threaded lower end,said semi-cylindrical sections of the hinge plates having transverselydisposed slots positioned to receive the lower end of the bolt, and anut threaded on the lower end of the bolt, for. urging the hinge platesoutwardly with the outer edgesof the said hingev plates; contacting theinner surfaces of legs of the saw horse positioned in the said legreceiving brackets, the said semi-cylindrical sections of the hingeplates being alternately positioned with each plate having a largesection on one end and a small section on the other and with the platesassembled whereby the small sections extend into large sections ofcomplementary plates.

GLARENCE E. DALTON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED. STATES PATENTS Number Name Date 5523045 Tilley Dec; 31, I8951,555,577: l-lorner Sept. 29, 1925 2,317,444 Dalton Apr; 2?, 19432,330,766 Walstrom Sept; 28; L943 2,331,595: Bush Oct..,12', 19432,412,716" Campbell Dec. 17;, 1946:

